Improvement in type-casting machine s



UNITED STATES 'JOHN STURGIS, OF NEW YORK, N. Y.

IMPROVEMENT iN TYPHCSTlNG MACHNES.

Specification forming part of Letters Patent No. SL?, dated June 14, 185B.

To all whom z' may concern.'

Be it known that l, JOHN I. S'rURGIS, of the city, county, and Stateoi' New York, have invented certain new and useful Improvements in rtype-Casting Machines; and ido hereby declare the following to be a full description mold-block to and `from thenipple of the metal4 i hath; second, in the combination ot' thelevers and cani and spring movements for holding the matrix and levering7 it (technically) when in operation for molding type, and, third, in the mode oi' setting the upper half of the mold-block by means of a r7shaped bar secured to a back piece, which is made adjust able `by means of sctscrcws holding in the joint at the back of theniold'bloelt, and, lastly, in the arrangement ofthe several parts ofthe machine for the purpose of making a typecasting machine. tion more particularly l will refer to the aeconipanying drawings, forming a part of this schedule, the saine letters of reference, wherever they occur, referring to the same parts.

Figure l is a side elevation of the machine. Fig. 2 is a front elevation of the same. Fig. 3 is a plan view of the saine. 4 is a detached view of the lower half of the mold- `bloclnshowing the matrix, spring, lever, and cani for holding and levering the matrix. Fig. 5`is a cut sectionalview of the moldbloek,

through the red dotted linex :vof Fig. 3. Fig.

D, works by means of levers D D Dit, oper` ated upon by a cam, Dt, on the end of themain 5 l3nt to describe my invenshaft H. In the fused-metal bath is also a nipple-stopper, E, which is operated to close the vent oi' the nipple F by the levers E2, E3, Ef. and E", and a cam, G, on the main shaft H. Letter l is the mold-block rest or frame, the back end ot' which is supported by boxes J .l on a rook-shaft, K, which is supported in adjustable boxes L L in standards M M at each side of the machine, and at its -front end by a working-joint in the upper end of a vertical roclishai't, N, attached at its lower end to the under side of the bed-plate of the machine. In this vertical rock shaft is a pin, O, which works in a groove in a (fain, l), on the main shaft H, so that ns the cani is rotated the moldblocl; rest is moved backward and forward to carry the mold-block to and from the nipple oi' the metal bath. forked at its back endv to allow room for the motion ofthe lever to open the mold-,bleek and operate the matrix, and also with a downward slant, so as to allow the type to fall freely from the matrix; when the inoldblock is opened.

Letter Ris the lower half of the in oldhloek secured to the end ot' the mold-block rest. To the outer end of the lower haltet' the moldblool is a working-joint, R2, to which is at taehcd av-shaped bar, S, by means of an adjusting-plate and screws, R4, holding the vshaped bar and plate `against the end ot the mold-block, so as to allow of adinet: the upper half of the nioldbloeh secured on the 7 -shaped bar. On this baris adjusted the upper half of the mold-block Rhaving bindingscrews r9' working through R3 and against the bar, Fig. 1, for holding it iirnily in itsadj usted place on the bar-that is, the lower edge of the v-bar is forced into the 7-seats cut in rf* ri in the upperhalfot'thc mold-block by means of the screws r r, so as to hold it rinly from slipping and at the same time. adjustment of the lupper half of the mold-block in less time and With more certainty than by any other adjusting arrangement now known. Letter T is a rod orlever for opening the irnold-bloek, the lower end of which is jointed to a curved lever,-U. This lever is secured by a center screw or pin, WL', to one of the supports J of the mold-block, rest so as to have a simultaneous backward .and forward motion with the mold-block and has its outer end The mold-block restis made' working in an inclined slot, V, in a plate secured to one of the standards M, so that as the mold-block is inoved backward and forward' the, pin in the lower end of the lever U, working in the'inclined slot V,operates the leycr T md closing thereby the upper` halt" of the mold-block. Letters. W and W'lz are the ina prix and matrix-holder, the latter secured by center pin, Wj, working througl-i a slot in the matrix-holder to the lower side 'of the lower half of the-mold-blo'ck and having in` its lower end a roller which Works on a cam, X, securedon the rock-shaft K. This cam is operated by the reciprocating motion of the rock shaft l( and a partial rotating motion caused by a pin, Y, secured toy oueof the standards, M, and holding the lower pendent end of the cam X,so that the action of the Cain on thematrixholder holds the rnatriv` up to the moldhlock.; In the inner face ofthe matrixholder WW is a notch, W4, in which the end of a spring, Z, (secured to the under side ofthe mold-block,) works for the purpose, also, of assisting to give the matrix al more elastic and perfect mo'- i tion,in combination with the cam-motion,than

:lowerend of it to actagainsta post, et', secured to thejbed-plate ofthe inachine,so that as the moldblock rest is pushed forward the setscrew e comes inl contact with the post and forces the rod a2 against the back of the matrix to hold it while the type is being cast firmly to the mold-block,

The operation of these several parts is that when the nlain shaft is rotated it causes the cam on the outer end of it to operate the plunger in the fusedmetal well at the same time that the second or middle cam operates the nipple-stopper. Vhile this alsois being done the camini? Causes the mold-block to be moved forwardand operates the lever U, turning on its.pivotw2,'.workingin the inclined slot Y, to shut downthenpper half of the mold-block,

and also causes the lower end of the matrixholder to run over the cam X on the rockshaft, this cam having its lower side held by the pin Y, so as to prevent too much motion to raise the matrix, in combination with the spring Z,to its seat against the mold-block, in which position it is firmly held by the rod pressing against the back of it by means of -the set-screw c3 in the end of the lever c2 acting against the post e? to hold-the matrix firmly in its seat till the'type has been formed by thev jet of metal thrown in the mold-blookv by the plunger. In this position the type is formdd, and the cams having passed their greatest di arneters the mold-block is drawn back, andin doin'g so the upper half'of the mold-block is opened, when the matrix is levercd (technically) by the operation of the spring and levers acting upon the matrixholder and freed from the face of the type, so that it may fall freely from the mold into a box for that purpose.

Having now describedy my invention and its operation, I will state what I claim and desire to secure .by Letters Patent of the United States- A 1. The use ofthe horizontal mold-block rest, in combination with the. vertical and horizontal rooleshafls and cani P for the purpose ofob-v taining a motion of the-'mold-block as nearly horizontal as practicable, substantially as set forth.

2. The use of the lever el and rod a2, in combination with the horizontal mold-,block rest and matrix, substantially as set forth.

3. The use of the matrix-holder having a slot in it to allow of a lifting motion on its center pin, w3, and a notch in its backside, w, for f the end of a spring, Z, to act against, in combination with the spring Z, inclined plane or camX on the horizontal rock shaft K, and pin Y for holding it, substantially as set forth.

4. The -PJ-shaped bar S, secured-to an ad- `instable end plate, R4, attached to the outer end of the lowei` half of the 1nol'd-block,in co1nbination with the upper half'of the mold-block, for the purposes substantially as set forth.

Y JOHN I. STURGIS.

\Vitnesses:

CHARLES L: BARRET,- L'Ewis Towson Voler. I 

